| Strictly protected reserves |
| Biological reserve |
IUCN Ia |
Reserve |
Categories including the most restricted use, comprised of public areas aiming to preserve intact ecosystems. No resident human population are permitted. |
| Ecological station |
IUCN Ib |
| Park |
IUCN II |
Park |
In the public domain, aiming to preserve areas of great ecological importance and scenic beauty. Only research, recreation and tourism activities are permitted. |
| Natural monument |
IUCN III |
Refuge |
A Natural Monument contains areas of outstanding natural beauty, whereas a Wildlife Refuge aims to protect areas in which species can persist and reproduce. Both categories can include private lands, as long as land use is compatible with the objectives of each category. Otherwise, landholdings can be expropriated and incorporated into the public domain. |
| Wildlife refuge |
IUCN IV |
| Sustainable use reserves |
| Environmental protection area |
IUCN V |
EPA |
Aims to protect biological diversity, but allows human occupation and natural resource use/extraction. Consists of public and private lands, and often includes agricultural and/or urban areas. |
| Area of relevant ecological interest |
IUCN IV |
AREI |
Usually small sites with little or no human occupation. Contains important examples of biota and their use can be carefully regulated. Can include either public or private lands. |
| Forest |
IUCN VI |
Forest |
Predominantly native forest cover whose main objective is the sustainable use of natural resources. Under public domain, with public visitation permitted. |
| Extractive reserve |
IUCN VI |
SUST |
All categories comprise areas in the public domain that mainly aim to manage natural resources. Both Extractive Reserves and Sustainable Development Reserves contain traditional populations conducting extractive livelihoods. |
| Fauna reserve |
| Sustainable development reserve |
| Natural heritage private reserve |
IUCN IV |
NHPR |
A private landholding, pledged in perpetuity for the conservation of biological diversity. Research, ecotourism visitation, recreation and education activities are all permitted. |